3904242 has 16 divisors (see below), whose sum is σ = 7832160. Its totient is φ = 1297472.

The previous prime is 3904217. The next prime is 3904249. The reversal of 3904242 is 2424093.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3904249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738 + ... + 3290.

It is an arithmetic number, because the mean of its divisors is an integer number (489510).

Almost surely, 2^3904242 is an apocalyptic number.

3904242 is an abundant number, since it is smaller than the sum of its proper divisors (3927918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3904242 is a wasteful number, since it uses less digits than its factorization.

3904242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 3904242 is about 1975.9154840225. The cubic root of 3904242 is about 157.4631407825.

The spelling of 3904242 in words is "three million, nine hundred four thousand, two hundred forty-two".